Top Definition
Thin loops of ultra dense engery, far narrower than the nucleus of an atom but stretching across vast distances, left over from the Big Bang and acting as gravitational 'seeds' on which the galaxies grew.
A piece of cosmic string just a mile long would weigh as much as the Earth. A cosmic string that stretched right across the universe could be scrunched up into a ball smaller than a single atom, but would weigh as much as a supercluster of galaxies.
by OneBadAsp October 20, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt